B Set 98 Form Exercise
01
Estimate 76 + 321 to the nearest 10 = ?
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400

02
Estimate 353 + 462 to the nearest 10 = ?
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810

03
Round 694 to the nearest ten = ?
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690

04
About how many: 42 ÷ 8?
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5

05
Estimate 380 + 458 to the nearest 10 = ?
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840

06
Round 447 to the nearest hundred = ?
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400

07
Estimate 353 + 300 to the nearest 10 = ?
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650

08
Round 875 to the nearest ten = ?
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880

09
Round 346 to the nearest hundred = ?
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300

10
Estimate 180 + 442 to the nearest 10 = ?
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620

11
Round 175 to the nearest hundred = ?
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200

12
About how many: 190 ÷ 9?
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21

13
Estimate 128 + 218 to the nearest 10 = ?
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350

14
Round 815 to the nearest ten = ?
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820

15
Estimate 267 - 251 to the nearest ten = ?
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20

16
Estimate 378 - 14 to the nearest ten = ?
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370

17
About how many: 53 ÷ 4?
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13

18
About how many: 135 ÷ 8?
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16

19
Estimate 175 - 143 to the nearest ten = ?
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40

20
Estimate 401 - 383 to the nearest ten = ?
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20